/Engine/Source/Runtime/Engine/Public/EditorSupportDelegates.h
Called when the editor is about to cleanse an object thatmustbe purged (such as when changing the active map or level)
static [FPrepareToCleanseEditorObject](API\Runtime\Engine\FEditorSupportDelegates\FPrepareToCleanseEditorObject) PrepareToCleanseEditorObject;